Shoulders
Muscles consists of the following :
The
deltoid is a large, three-headed, thick, triangular muscle which
originates from the clavicle and the scapula at the rear of the shoulder
and extends down to its insertion in the upper arm.
Basic
function : To rotate and lift the arm. The anterior deltoid lifts the
arm to the front; the medial deltoid lifts the arm to the side; the
posterior deltoid lifts the arm to the rear.
The
trapezius, is the flat, triangular muscle that extends out and down
from the neck and then down between the shoulder blades.
Basic
Function : To lift the entire shoulder girdle, draw the scapula up,
down, and to either side, and help turn the head.
Get your Bodybuilding Supplements at discounted price
|